Optical polarization

About: Optical polarization is a research topic. Over the lifetime, 13992 publications have been published within this topic receiving 244284 citations.

Polarization-independent and high-diffraction-efficiency Fresnel lenses based on blue phase liquid crystals.

Abstract: A polarization-independent and high-diffraction-efficiency Fresnel lens is developed based on blue phase liquid crystals (BPLCs). The optically isotropic characteristic of BPLCs is used to produce a polarization-independent Fresnel lens. The small optical phase shift of BPLCs that is induced by the Kerr effect is sufficient for the BPLC Fresnel lens to have high theoretical and experimental diffraction efficiencies of 41% and ∼34%, respectively. An electrically erasable memory effect in the focusing diffraction at an electric field E>4.44 V/μm is observed. The electro-optical properties of the BPLC Fresnel lens are analyzed and discussed.

Fiber optic Michelson sensor and arrays with passive elimination of polarization fading and source feedback isolation

Abstract: A fiber optic Michelson interferometric sensor system with passive elimination of polarization fading and source feedback isolation is disclosed In a preferred embodiment, an optical source provides light of a first polarization state to a polarization selective element Output light from the polarization selective element passes through a length of optical fiber into a Michelson interferometric sensor which utilizes a Faraday rotator/mirror assembly, that is coupled to distal ends of sensing and reference arms of the Michelson interferometer, to provide for the passive elimination of polarization fading The polarization selective element at the output of the optical source provides isolation of the optical source from the Michelson interferometer sensor